Flat/Low-Slope Roof

Flat/low-slope roofing systems offer distinct advantages for both homes and commercial/industrial buildings. Whether you're designing a modern property or upgrading a traditional structure, choosing the right roof pitch is essential for performance and curb appeal.

Flat/low-slope roofing is a popular choice for commercial spaces and contemporary homes, offering a clean, low-profile look and usable rooftop space. Ideal for solar panels, HVAC systems, or rooftop patios, flat roofs are typically built with durable, weather-resistant materials like TPO, EPDM, PVC, or modified bitumen. They’re cost-effective and easy to maintain, especially in urban environments.

Professionally installed flat roofing systems deliver the right balance of form and function—ensuring your property stays protected, efficient, and visually appealing for years to come.

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What is Flat/Low-Slope Roofing?

Flat roofing is a practical, low-slope roofing solution commonly used on commercial buildings, modern homes, and extensions. Built with durable, weather-resistant materials such as TPO, EPDM rubber, PVC, or modified bitumen, flat roofs are designed to handle heavy rain, snow, and temperature fluctuations when properly installed with adequate drainage systems. Unlike pitched roofs, flat roofing offers a streamlined appearance and creates usable space for HVAC units, solar panels, or rooftop patios. These roofs are lightweight, easy to access for maintenance, and generally more cost-effective to install and repair. Available in smooth, clean finishes, flat roofing can complement contemporary architecture while meeting functional needs. With professional installation and routine upkeep, flat roofs can last 20–30 years or more, offering a dependable, space-saving option for residential and commercial properties alike.

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SPACE

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COST

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EASY

ACCESS

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SPACE

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Types of Flat Roofing Materials

TPO is a single-ply roofing membrane made from a blend of rubber and plastic, offering excellent durability and energy efficiency. It’s highly resistant to UV rays, heat, and chemical exposure, making it ideal for flat roofs in both residential and commercial settings. TPO membranes are typically white or light-colored, which helps reflect sunlight and reduce cooling costs. It’s also lightweight and relatively easy to install, with heat-welded seams that provide strong, leak-resistant protection.

EPDM rubber roofing is a flexible, long-lasting solution for flat and low-slope roofs. Made from synthetic rubber, EPDM is highly resistant to UV rays, ozone, and extreme temperatures, making it ideal for Chicago’s changing weather. Commonly used on commercial buildings and residential flat roofs, EPDM is easy to install and offers a lifespan of 25–30 years or more. It’s available in large rolls for fewer seams and can be installed with adhesive or ballasted systems.

PVC roofing is a strong, single-ply membrane made from plasticized vinyl. It’s highly durable and resistant to chemicals, grease, fire, and punctures, making it ideal for flat roofs on restaurants, factories, and other commercial buildings. PVC roofs are heat-welded at the seams for superior waterproofing and can reflect sunlight, helping to reduce energy costs. Though often more expensive than TPO or EPDM, PVC offers excellent longevity and performance in demanding environments.

Modified bitumen is an asphalt-based roofing material reinforced with fiberglass or polyester for added strength and flexibility. It comes in rolls and is installed in multiple layers using heat, adhesives, or self-adhering sheets. Known for its durability and resistance to tears, water, and extreme weather, modified bitumen is a reliable choice for flat or low-slope roofs. It can be topped with reflective coatings to improve energy efficiency and extend its lifespan, which typically ranges from 20–30 years.

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Why we love Flat Roofing!

  • Cost-Effective

    Flat roofs typically require fewer materials and less labor to install than pitched roofs, making them more budget-friendly upfront—especially for large buildings.

  • Space Utilization

    Flat roofs can be used as functional space—ideal for rooftop patios, gardens, solar installations, or even commercial storage needs.

  • Accessible

    The low slope allows for safer and easier access to inspect, repair, or maintain roofing systems, HVAC units, solar panels, and other rooftop equipment.

  • Energy Efficient

    Many flat roofing materials (like TPO or PVC) are reflective, helping to reduce heat absorption and lower energy costs in warmer months.

  • Urban Farming

    Flat roofs can support green roofing systems, allowing for vegetation, stormwater management, and even small-scale urban agriculture.

Flat roof system with trees and blue sky behind

  • Cost-Effective

    Flat roofs typically require fewer materials and less labor to install than pitched roofs, making them more budget-friendly upfront—especially for large buildings.

  • Space Utilization

    Flat roofs can be used as functional space—ideal for rooftop patios, gardens, solar installations, or even commercial storage needs.

  • Accessible

    The low slope allows for safer and easier access to inspect, repair, or maintain roofing systems, HVAC units, solar panels, and other rooftop equipment.

  • Energy Efficient

    Many flat roofing materials (like TPO or PVC) are reflective, helping to reduce heat absorption and lower energy costs in warmer months.

  • Urban Farming

    Flat roofs can support green roofing systems, allowing for vegetation, stormwater management, and even small-scale urban agriculture.

Flat roof system with trees and blue sky behind